Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
4 × 10 = ______
46 + 20 = ______
40 + 20 = ______
36 + 20 = ______
61 − 10 = ______
5 × 10 = ______
2 × 10 = ______
15 + 20 = ______
80 − 10 = ______
7 × 10 = ______
95 − 10 = ______
22 + 20 = ______
46 + 10 = ______
36 + 10 = ______
8 × 10 = ______
46 − 10 = ______
14 + 20 = ______
21 + 10 = ______
25 + 10 = ______
62 + 10 = ______
